Installation and Handover Guidelines
Last Modified: 29-02-2024
1. Delivery Conditions
Delivery shall be made as a full unloaded load “free on lorry” at the agreed construction site. The delivery location must be as close to the usage point as a fully loaded articulated lorry can access on a level and load-bearing surface.
The buyer is responsible for ensuring:
Unobstructed access for a minimum 40-foot articulated lorry.
Suitable site roads and a delivery area that is level, horizontal, and load-bearing.
Safe access for unloading operations.
2. Delivery Scheduling and Waiting Time
Call-off must be submitted seven working days before the desired delivery date.
The call-off may be modified up to six working days before delivery.
A maximum of two hours is allocated for unloading from the agreed delivery time.
Waiting time beyond two hours is charged at GBP 130 per hour.
Nordic Offsite is entitled to a two-hour grace period on the delivery time during which no waiting-time compensation can be claimed.
3. Call-Off Procedure
All deliveries must be called off via email:
Email: transport@nordicoffsite.com
The call-off must include:
Load number (as per position list)
Requested delivery date and time
Delivery address
Contact person’s name, phone number, and email address
If delivery is not confirmed by Nordic Offsite within 48 hours, the buyer must contact Nordic Offsite to ensure the call-off has not been misdelivered or lost.
4. Delivery Confirmation and Inspection
Upon arrival:
The arrival time must be recorded on the delivery documents.
Before unloading, the cabin must be inspected for visible external damage, especially:
Drainage under the base
Floor drains
Ventilation fittings
Any damage must be documented before unloading, recorded on delivery documents, and immediately reported to the Nordic Offsite project manager.
The installer must assist in pulling the lorry tarpaulin cable back and forth for unloading.
The unloading completion time must be recorded on the documents.
5. Weight and Lifting Instructions
Lightweight Concrete Pod with Concrete Floor: weight approx. 875 kg/m²
Steel-framed Fiberboard Pod with Concrete Floor: weight approx. 475 kg/m²
Steel-framed Fiberboard Pod with Lightweight Floor: weight approx. 275 kg/m²
Neoprene Levelling
Neoprene blocks (e.g., 10 × 100 × 100 mm) are supplied.
Blocks must be placed in accordance with the provided levelling plan and door threshold detail.
Additional steel plate clips are not supplied.
If smaller plastic packers are used, a minimum 5 × 100 × 100 mm steel plate (never smaller than neoprene size) must be inserted between plastic and neoprene to distribute pressure.
Lifting Requirements
Cabins must be lifted from the lorry and craned into the building using the four threaded lifting bolts in the ceiling.
Minimum lifting wire length: 550 cm.
Lightweight steel cabins must be lifted using a lifting yoke.
Horizontal pulling is not permitted.
Temporary Storage
If stored temporarily, cabins must rest on minimum four supports of 100 × 100 × 100 mm to protect protruding floor drains.
The storage area must be level and stable.
6. Installation Guidelines
The ceiling must not be stepped on.
Horizontal adjustments may only be made at the base, not at the door zone.
Before installation, check that any cutouts for drainage pipes are correctly positioned and that the area is free of concrete debris.
Positioning
The cabin must be placed as close as possible to surrounding walls without direct contact between concrete walls, maintaining minimum 30 mm clearance.
A 1-metre height mark is located at the door and one adjacent wall (measured from the finished cabin floor).
This must be used to verify installation height and vertical alignment.
Correct installation will ensure the internal floor slope is accurate.
7. Tolerances
External dimensions: ±10 mm
Flatness of underside of the base: ±5 mm
Installation deviation: maximum 2 mm to maintain 30 mm internal floor slope
Installation must comply with BSI standards and relevant UK building regulations.
8. Construction Considerations
Installers must account for:
Ventilation ducts, lighting, water pipes, and other services above the cabin
Services inside the shaft (cisterns, pipes, drainage, electrical installations)
Floor drains and drainage pipes beneath the cabin which must not press against other building components
Protective plastic film must remain intact and must not be removed until the building is watertight.
The temporary door protection panel must remain in place, and the cabin must remain sealed until ready for use.
All packaging materials must be removed by the buyer.
Sealing Gap
The gap between the top of the cabin and the slab above must be sealed using a flexible material (foam or acrylic).
Cement-based materials must never be used, as these can cause moisture transfer and impair acoustic performance.
9. Weather Protection
Cabins must be protected from the weather during temporary storage and post-installation until the building is fully watertight.
The buyer is responsible for ensuring:
No water runs through the building via shafts or open structures.
Any damage caused by insufficient protection will be repaired only at the buyer’s cost.
Tarpaulin Requirements
Nordic Offsite supplies a tarpaulin and straps for each cabin. The buyer must:
Install the tarpaulin fully covering the cabin
Secure it tightly so it sheds water
Ensure it is stretched so no water pools
Empty any accumulated water before removal
Prevent water from standing on top of the cabin (pooled water will seep into the structure and cause damage)
10. Interim Door Instructions
Each cabin is supplied with a two-part interim door:
The lower panel (approx. 20 cm in height) may be removed to inspect alignment (checking level and plumb).
The lower panel must be reinstalled after inspection.
When surrounding floors are levelled by the flooring contractor, the lower panel is removed and not reinstalled.
The interim door is sized to remain in place during painting and finishing works, protecting the cabin for as long as possible.
Removing the entire interim door before Nordic Offsite’s inspection means the cabin is deemed accepted in its delivered condition.
11. Drilling Instructions (Critical)
To prevent structural and technical damage:
Maximum drilling depth: 35 mm
Do not use hammer/impact drilling
If reinforcement is hit, drilling must stop immediately and be relocated
Do not drill near embedded installations
Maintain a minimum clearance of 100 mm from the centre of any embedded pipe
Locations of embedded pipes can be verified from Nordic Offsite’s cabin drawings
12. Door Frame Fixing Requirements
Six embedded plastic screw blocks are cast into the door opening
Door frames must be fixed into these blocks only
Screws must be maximum Ø 4.2 mm
Screws must be centred in each block
Pre-drilling is mandatory before fixing
Incorrect fixing may cause wall damage, tile cracking, or misalignment.
13. Weather Tightness Confirmation and Handover Inspection
Once the roof is watertight, the customer must confirm this via email to the Nordic Offsite project manager.
Nordic Offsite will then conduct:
An inspection for installation damage
A completeness check of the delivery
If cabins have been used to store materials or equipment:
Nordic Offsite disclaims liability for any resulting damage
Cabins must be emptied immediately
A chargeable inspection will be conducted at the buyer’s expense
Removing the interim door before inspection means the cabin is deemed accepted.
14. Cleaning, Maintenance, and System Commissioning
Cabins are delivered factory-clean with all solid debris removed.
The buyer must perform final cleaning before handover to the end user.
Plumbing System
Entire plumbing system must be flushed before use to avoid blockages in taps, valves, and cisterns.
If units remain unoccupied, cisterns and taps must be flushed periodically to prevent limescale buildup.
Heating System
Must be vented, activated, and balanced before use.
Improper balancing may cause underfloor heating performance issues.
Factory heating settings follow the manufacturer’s defaults.
Return valve must not be set higher than 40°C, as this may damage tiles and grout.
15. Installation Contractor’s Quality Control Checklist
Before installation:
Verify cutouts for drainage pipes are correctly positioned.
During installation:
Confirm and document lifting wire is minimum 550 cm.
Confirm and document that steel cabins are lifted using a lifting yoke.
Check that drainage pipes beneath the base are undamaged.
Check height level using the 1-metre marks.
Check walls are plumb using the 1-metre marks on door and adjacent walls.
After installation:
Confirm floor drains are undamaged.
Check for external installation damage.
Confirm protective plastic sheeting is intact and tarpaulin is correctly installed and secured.